Charged-particle reaction studies for nuclear astrophysics

Laird, A.M.; Buchmann, L.; Davinson, T.

doi:10.1007/s10751-013-0899-1

Cited by 2 publications

(5 citation statements)

References 5 publications

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“…These results enabled the discovery of the first known crossover on the two neutron separation energy, S 2n , surface in the chart of nuclides. In particular the S 2n of 34 Al was found to be 24.8 (10.8) keV less than that of 33 Mg. The result, which is consistent with the predictions of large shell model calculations, can be attributed to large energy gains in the Mg isotopes in the island of inversion [94].…”

Section: Evolution Of Nuclear Shell Structure and Three-body Forcesmentioning

confidence: 78%

“…Using a 7 Be target produced at TRIUMF the 7 Be( g p, ) 8 B reaction rate was measured at the University of Washington Center for Experimental Nuclear Physics and Astrophysics [133,134]. Using the TUDA detector [33], the 8 B asymptotic normalization coefficient was extracted from the 7 Li+ 8 Li elastic scattering, taking advantage of isospin symmetry [135]. Major advances have also been made in theoretically predicting the S 17 using ab initio theory, in particular the no-core shell model/resonating group method (NCSM/ RGM) [136].…”

Section: Quiescent Stellar Burningmentioning

confidence: 99%

“…Two potentially important isotopes in the study of novae are 33 S and 34m Cl. The evidence for 33 S in presolar grains may provide an important test of nova model predictions since the total sulfur abundance in the ejecta of a nova can be used as a thermometer to determine the peak temperature of the explosion. At the same time 34m Cl is a potential target for γ-ray telescopes.…”

Section: Explosive H and He Burning In Novae And X-ray Burstsmentioning

confidence: 99%

“…The TRIUMF-UK Detector Array (TUDA) [33] is a versatile facility for the study of nuclear reactions of astrophysical importance with charged particle exit channels using both direct and indirect experimental techniques. Often these exit channels, such as ( a p, ) and (a p , ), compete with radiative capture, thus the measurements with TUDA are complementary to those with DRAGON.…”

Section: An Introduction To Equipment For Experiments At Isacmentioning

confidence: 99%

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The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

2016

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Since 1999, the TRIUMF-ISAC facility has been providing rare isotope beams for nuclear physics experiments. The three pillars of the program are nuclear structure, nuclear astrophysics, and fundamental symmetries. This article reviews highlights of each of these aspects of the ISAC science program, including tests of the collective behaviors, first explained by Bohr, Mottelson and Rainwater, at the limits of nuclear stability, and future prospects with the ARIEL facility at TRIUMF.

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Section: Evolution Of Nuclear Shell Structure and Three-body Forcesmentioning

confidence: 78%

Section: Quiescent Stellar Burningmentioning

confidence: 99%

Section: Explosive H and He Burning In Novae And X-ray Burstsmentioning

confidence: 99%

Section: An Introduction To Equipment For Experiments At Isacmentioning

confidence: 99%

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The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

2016

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“…The experiments were performed at the ISAC facility, at the TRIUMF Laboratory in Vancouver, Canada. A beam of 23 Na ions, with typical intensities of ∼1 × 10 9 pps, was incident on a 4 He gas cell target, located in the TRIUMF-UK Detector Array (TUDA) scattering chamber [14]. A schematic of the experimental setup is shown in Fig.…”

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confidence: 99%

Measurement ofNa23(α,p)Mg

et al. 2015

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26Al is an important radioisotope in astrophysics that provides evidence of ongoing nucleosynthesis in the Galaxy. The 23Na(α, p)26Mg reaction has been identified by a sensitivity study as being one of the most important reactions for the production of 26Al in the convective C/Ne burning shell of massive stars. Owing to large uncertainties in previous experimental data, model calculations are used for the reaction rate of 23Na(α, p)26Mg in this sensitivity study. Current experimental data suggest a reaction rate a factor of ∼40 higher than model calculations. However, a new measurement of this reaction cross section has been made in inverse kinematics in the energy range E(c.m.)=1.28-3.15 MeV at TRIUMF, and found to be in reasonable agreement with the model calculation. A new reaction rate is calculated and tight constraints on the uncertainty in the production of 26Al, due to this reaction, are determined.

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Charged-particle reaction studies for nuclear astrophysics

Cited by 2 publications

References 5 publications

The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

The TRIUMF-ISAC facility: two decades of discovery with rare isotope beams

Measurement ofNa23(α,p)Mg

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